Merge artifacts

Author: yogh333

.github/workflows/build_with_current_nightly.yml

@@ -66,10 +66,21 @@ jobs:
       - name: Upload binary artifacts
         uses: actions/upload-artifact@v4
         with:
-          name: "app_binaries_${{ matrix.device }}"
-          path: ${{ env.ELF_NAME }}
+          name: "app_elf_${{ matrix.device }}"
+          path: ${{ env.ELF_NAME }} 
           if-no-files-found: error
 
+  merge_artifacts:
+    name: Merge build artifacts
+    needs: build_with_last_nightly
+    runs-on: ubuntu-22.04
+    steps:
+      - uses: actions/upload-artifact/merge@v4
+        with:
+          name: app_elf_artifacts
+          pattern: app_elf_*
+          delete-merged: true
+
   #ragger_tests:
   #  name: Run ragger tests using the reusable workflow
   #  needs: build_with_last_nightly